shell腳本--監控java進程存活腳本

#!/bin/bash
base_dir=/opt
war_processor="tomcat"
jar_processor="manager-server.jar  platform-server.jar  platform-task.jar platform-trade.jar platform-user.jar"
IP_ADDR=`/usr/sbin/ifconfig |grep inet |awk '{print $2}'|head -1`
MALL_ADDR="[e-mail]"
#磁盤超過百分之80發送郵件告警
disk_used() {
   DISK_USED=`df -T |sed -n "2p" |awk '{print ($4/$3)*100}'`
   DISK_percentage=80
   if [ `expr "$DISK_USED > $DISK_percentage"` ]
     then
         echo "$IP_ADDR:當前硬盤使用率為$DISK_USED%" | mail -s "服務器硬盤監控告警" $MALL_ADDR
   fi 
       }
#內存使用率大於90%告警
mem_used() {
    mem_pused=`/usr/bin/free -m | sed -n '2p'|awk '{ print ($3+$6)/$2*100}'`
    #memory usage percentage
    percentage=90
    #clean mem_cache 使用bc來進行比較，不然會報錯
    if [ $(echo "$mem_pused > $percentage"|bc) -eq 1 ]
        then
            echo "$IP_ADDR:當前內存使用率為$mem_pused%" | mail -s "服務器內存監控告警" $MALL_ADDR
            #echo "1qaz2wsx" |sudo -S sh /opt/shell/clean_mem_cache.sh
    fi
    }
#進程檢測
process() {
    for jar in  $jar_processor
    do
    JAR_PROCESS=`ps -ef |grep $jar |grep -v grep |wc -l`
    if [ ! -n "jar_processor" ]
    then
        break
    else
        if [ $JAR_PROCESS = 0 ]
        then
               echo "$IP_ADDR:$jar進程已停止，請確認是否正常" | mail -s "服務器應用進程監控告警" $MALL_ADDR
        fi
    fi
   done

   for war in $war_processor
   do
    WAR_PROCESS=`ps -ef |grep $war |grep -v grep |wc -l`
     if [ ! -n "war_processor" ]
        then
                break
        else
        if [ $WAR_PROCESS = 0 ]
            then
                   echo "$IP_ADDR:$war進程已停止，請確認是否正常" | mail -s "服務器應用進程監控告警" $MALL_ADDR
            fi
    fi
   done
    
   
}
process
disk_used